Sash-balance.



No. 644,949. Patented Mar. 6, I900. T. M. SPINKS. SASH BALANCE.(Application filed Nov. 1, 1899.)

(No Model.)

- //v VE/V 7'05 M (Q/ A 7706NE rs I QNITED STATES PATENT OFFIC THOMASMANLY SPIN KS, 0F SHUBUTA, MISSISSIPPI.

sAsH-sALANcs.

SPECIFICATION forming part of Letters Patent No. 644,949, dated March 6,1900. Application filed November 1, 1899. Serial No. 735,503. (Nomodel.)

To all whom it may concern.-

Be it known that I, THOMAS MANLY SPINKS, a citizen of the United States,residing at Shubuta, in the countyof Clarke and State of Mississippi,have invented a new and Improved Sash-Balance, of which the following isa full, clear, and exact description.

One object of theinvention is to so construct window-sashes thatsash-weights need not be employed and to provide a construction wherebyfon r sashes are used in a frame, the sashes being balanced in pairs,and in which one pair of sashes is arranged to balance another pair.

pair of sashes may be operated independently or bothpairs si inultaneously.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming apart ofthis specification, in which similar characters of reference indicatecorresponding parts in both figures.

Figure 1 is a front elevation of windowsashes and a portion of awindow-frame in which the sashes are mounted, parts of the frame beingbroken away; and Fig. 2 is a longitudinal section through thewindow-frame and through the sashes at a point near one of their ends.

The window-frame A is of the ordinary type, except that the said frameis provided with a double set of sash-grooves, since four sashes areused in closing the opening of the windowframe. These sashes arearranged in pairsnamely, an upper pair ofsashes B and B and a lower pairof sashes C and 0'. Each pair of sashes is of the same construction asthe ordinary sashes of a window-frame-that is to say, the upper memberof the lower member of the upper sash are meeting-rails, but the lowermember of the lower sash. of the upper pair constitutes a meetingrail10, as does also the upper rail or member 11 (if the upper sash of thelower pair, as shown in ig. 2.

A cord 12 is secured to the upper sash of the upper pair at each end,extend downward and are attached 'to the upper rail of the lower sash ofthe upper pair,

the lower sash and a d as shown in Fig. 2, and the cord 12 is passedover a pulley 13, located in a chamber 14 in the upper portion of thewindow-frame, above the upper sash when the sashes are closed.

Cords 15 are located at each side of the win-- dow-frame pair balancesthe other, and one pair of sashes serves to balance the other pair, sothat by movlng the cords 12 thesashes of the u per pair may be adjustedindependent of t e sashes of the lower pair, and the sashes of the lowerpair dependent of those of the upper palr by ma- 17. Thus it will beobserved that the two sashes of the upper pair may be brought oneimmediately back of the occupy a position between the top of thewindow-frame and the upper portion of the lower pair of sashes, and thelower pair of sashes may be correspondingly arranged, or all of thesashes may be placed one at the rear of the other at any point in thelength of the window-frame, thus enabling more complete ventilation tobe obtained than when sashes are When the window is open to its fullestextent, ihe sash only occupies one-fourth of the opening.

Having thus described my invention, I claim as new and-desire to secureby Letters Patent- 1. A window-frame, sashes mounted in thewindow-frame, the sashes being arranged in pairs, each sash of a pairbalancing the other and the sashes of one pairbalancing the sashes otherand made to.

may be adjusted inof the mating pair, and means, substantially asdescribed, for independently moving the sashes of either pair; orsimultaneously operating both pairs of sashes,

2. The combination, with a window-frame, of two pairs of sashes, thesashes of each pair being mounted to slide in the said frame, one sashof a pair balanein g the other andone pair of sashes balancing themating pair, cords connecting the upper rails of the sashes of eachpair, rollers over which the said cords pass, rollers journaled in theframe, and conneeting-eords passed over the guide-rollers and secured tothe first-mentioned rollers, whereby each pairof sashes may be indepemently operated or both pairs of sashes simultaneously operated, as setfortln In testimony whereof I have signed my 1 name to thisspecification in the presence of two subscribing witnesses.

\ THOMAS MANLY SPINKS.

Witnesses:

E. F. MARTINIERE, W. L. WEEMS.

